Alden Co's monthly unit sales and total cost data for its operating activities of the past year follow. Management wants to use these data to predict future fixed and variable costs. Month Units Sold Total cost Month Units Sold Total Cost 318,000 $155,500 7 362,000 $292,624 2 163,000 99,250 8 268.000 149.750 3 263,000 203, 600 9 70,400 67,000 4 203,000 98,000 10 148,000 128,625 5 288,000 199,500 11 92,000 92,000 180,000 110,000 90,000 83,650 1 12 1. Estimate both the variable costs per unit and the total monthly fixed costs using the high-low method. (Do not round intermedia calculations.) High-Low method Calculation of Variable Cost per unit High-Low method - Calculation of Fixed Costs Total cost at the high point Vanable costs at the high point Volume at the high point Variable cost per unit Total variable costs at the high point Total fixed costs Total cost at the low point Variable costs at the low point Volume at the low point Total cost at the high point Variable costs at the high point: Volume at the high point: Variable cost per unit Total variable costs at the high point Total fixed costs Total cost at the low point Variable costs at the low point: Volume at the low point: Variable cost per unit Total variable costs at the low point Total fixed costs